Disclosed is a liquid crystal optical element for use in information recording media and displays, which is composed of a polymeric liquid crystal and from 0.01% to 10% by weight, on the basis of the polymeric liquid crystal, of a biphenyl or biphenyl derivative of formula (I) ##STR1## wherein X and...http://www.google.com.au/patents/US4842380?utm_source=gb-gplus-sharePatent US4842380 - Liquid crystal optical elements
